Size Charts & Conversion Tables
International size charts for shoes, clothing, rings, luggage, and more.
Most Used Size Charts
Quick links to the most searched chart pages across shoes, rings, hats, clothing, and mattresses.
Travel & Luggage
Bag size checker, airline comparison charts, and packing guides in one place.
All Size Charts
Shoes, clothing, and bras with US, UK, EU, and other region conversions.
Shoe Size Charts
International shoe size conversions for men, women, and children across US, UK, EU, and JP.
Clothing Size Charts
Men's and women's clothing size conversions with detailed body measurements.
Pants Size Chart
Men's waist (W) and women's US/UK/EU pant sizes with waist in cm—plus links to the sources we used.
Bra Size Charts
International bra size conversions with band and cup measurements.
Ring Size Charts
International ring size conversions with diameter and circumference measurements.
Bedding & Bedroom Hub
Mattress, sheets, and blankets in one place—plus Queen vs King comparison tools.
Bed & Mattress Size Charts
Standard US bed and mattress dimensions—Twin, Full, Queen, King, and California King—in inches and cm, plus UK, EU, RV, and crib sizes.
Blanket Size Charts
Throw, twin, queen, king, plus baby, receiving, and crib blanket sizes.
Bed Sheet Size Charts
Fitted and flat sheet dimensions for Twin, Full, Queen, King, and related bed sizes.
How to use size charts & FAQ
How to Use Our Size Charts
Step 1: Choose Your Category
Start by selecting the type of size chart you need. Charts cover shoes, clothing, bras, rings, and hats, with conversion tables for common international systems.
For example, if you're shopping for shoes, click on "Shoe Size Charts" to access brand-specific charts and international conversions.
Step 2: Find Your Current Size
Locate your current size in your local sizing system (US, UK, EU, JP, CN, etc.). If you're unsure of your size, we recommend measuring yourself first using our measurement guides.
For the most accurate results, use body measurements (chest, waist, hips for clothing; foot length for shoes) rather than relying solely on size labels.
Step 3: Convert to Your Target Size
Use the conversion table to find the equivalent size in your target sizing system. Each chart shows side-by-side comparisons across common international standards so you can match a size you already wear.
Remember that sizing can vary between brands, so always check brand-specific charts when available.
Step 4: Consider Brand-Specific Fit
Different brands may have slightly different fits even within the same size system. Our brand-specific charts include sizing notes and fit characteristics to help you make the best choice.
When in doubt, size up for comfort, especially for items that can't be easily adjusted like shoes and rings.
Understanding Different Size Chart Categories
Shoe Size Charts
Our shoe size charts cover all major brands including Nike, Adidas, New Balance, and more. Each chart includes conversions for men's, women's, and kids' sizes across US, UK, EU, JP, and CN systems. We also provide foot length measurements in both centimeters and inches for the most accurate sizing.
Best for: Finding your size when shopping for athletic shoes, casual footwear, or children's shoes from international brands.
Clothing Size Charts
Clothing size charts include detailed body measurements (chest, waist, hips) for men's and women's clothing. These charts help you convert between US, UK, EU, and Asian sizing systems, accounting for regional fit differences.
Best for: Shopping for clothing from international retailers or brands that use different sizing standards than your local market.
Bra Size Charts
Bra size charts provide conversions between US, UK, EU, and JP sizing systems, including both band and cup measurements. Our charts also explain sister sizing and how to use body measurements with brand tables.
Best for: Finding your correct bra size when shopping from international lingerie brands or converting between different sizing systems.
Ring Size Charts
Ring size charts show conversions between US, UK, EU, and Japanese ring sizes, along with measurements in millimeters and inches. These charts are essential for online jewelry shopping or when buying rings from international retailers.
Best for: Determining your ring size for engagement rings, wedding bands, or any jewelry purchases from international sellers.
Frequently Asked Questions
Why do I need to use size conversion charts?
Different countries and regions use different sizing systems, which can make online shopping confusing. For example, a US size 10 shoe is different from a UK size 10 or EU size 10. Size conversion charts help you find the equivalent size in your target system, ensuring you order the right size when shopping internationally.
Additionally, even within the same sizing system, different brands may have slightly different fits. Our brand-specific charts help account for these variations.
How accurate are these size conversion charts?
Charts follow common international standards and published brand size guides. Fit still varies by model and style—use the chart as a starting point and check the product page when you can.
For a closer match, measure first, then compare those numbers to the chart instead of relying only on a size label.
What if my size falls between two sizes on the chart?
If your measurements fall between two sizes, we generally recommend sizing up for comfort, especially for items that can't be easily adjusted like shoes and rings. A slightly larger size can often be adjusted with insoles, thicker socks, or resizing, while a size that's too small can cause discomfort.
For clothing, consider the fit style you prefer (slim, regular, or relaxed) and the brand's specific sizing notes when making your decision.
Can I use these charts for all brands?
Our general conversion charts provide a good starting point for most brands, but fit can vary significantly between different brands and even between different models from the same brand. We recommend checking our brand-specific charts when available, as they include brand-specific sizing notes and fit characteristics.
For brands without a dedicated chart here, start with the general conversion tables, then confirm on the retailer's size chart and return policy.